The Snugpak Special Forces 1 is a modular sleep system with two sleeping bags for layering in various weather conditions. This military sleep system can zip together with the detachable baffle to give you the convenience of a single center zip opening, or you can use the sleeping bags separately. The Paratex Light and Steelplate fabric provides breathable, lightweight, moisture-wicking, water repellent, and windproof performance. On top of that, this military sleeping bag has Softie Premier insulation and Reflectatherm heat reflective fabric for maximum warmth.